Traction-increasing means for traction engines



Sept. 2', 1924.

H. V. CROSLEY TRACTION INCREASING MEANS FOR TRACTION'BNGINES Filed Aug.13, 1923 2 Shoots-Sheet 1 ATTORNEY H. V. CROSLEY TRACTION INCREASINGMEANS FOR TRACTION News:

2 Shan -Shae; 2 I

2:: 0 Q Q2 \5 3 B Q .0 Q m H M Grad/ja Patented Sept. 2, 1924.

NT OFFICE.

HARRY V. CROSLEYQOF ROUNDUP, MONTANA.

TRACTION-INCREASING MEANS FOR TRACTION ENGINES.

Application filed August 13,1923. Serial No. 657,074.

To all whom it may concern:

Be it known that I, HARRY V. ORosLEY, a citizen. of the United States,residing at Roundup, in the county of Musselshell and State of Montana,have invented new and useful Improvements in Traction-Increasing Meansfor Traction Engines, of which the following is a specification.

The object of my said invention is the provision of traction increasingmeans susceptible of being readily applied to and removed from tractionengine wheels, and this in such manner that the wheels are not weakenedappreciably. and the pressure applied to the traction increasing meanswill not tend to loosen the connection between said means and thewheels; the said connection being of such a character that the tractionincreasing means can be put on or removed without raising the engine.

The laws of many States inhibit the passage of traction engines overbridges and paved highways unless the traction increasing means of suchengines are removed, and hence the ready removal of traction increasingis a desideratum.

To the attainment of the foregoing, the invention consists in theimprovement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification Figure1 is a general view of a section of traction increasing meansconstructed in accordance with my invention.

Figure 2 is an edge elevation of the same.

Figure 3 is a plan view showing the inner side of said section. 1

Figure 4 is an enlarged detail plan showing the outerside of a portionof the section and one lug carried thereby.

Figure 5 is an enlarged detail longitudinal section taken in the planeindicated by the line 55 of Figure 4: and showing the relativearrangement of one lug and one carrying strap, and the manner ofconnecting the lug to the strap and bracing the lug by the strap.

Figure 6 is a general view of a modification that is resorted to whenthe width of a wheel requires two rows of lugs.

Figure 7 is a detail longitudinal section on the line 7-7 of Figure 6.

Figure 8 is a detail enlarged cross-section on the line 8 8 of Figure 6,and showing the manner in which each lug of the modified construction isconnected to two carrying straps.

Similar numerals designate corresponding parts in Figures 1 to 5 towhichreference will first bemade.

I would have it understood that my novel traction increasing meanscomprises several arcuate sections such as shown in Figures 1, 2 and 3,the said sections being arranged end to end-around the peripheralportion of a traction wheel and being connected-at their ends to saidperipheral portion by means of bolts or other appropriate fasten-- ingdevices. The said sections are identical in construction and therefore adetailed description of the one shown in Figures 1 to 8 will suffice toimpart a definite understanding of all. The said section includes twoarcuate carrying straps 1 of appropriate metal arranged in parallelismand having by preference apertures 2 adjacent to their ends for thepassage of connecting bolts. The section also comprises spaced tractionaffording lugs 3 which are also formed of appropriate metal andarespaced apart and are arranged by preference at acuteangles to thecarrying straps L The said lugs 3 are of right angle form in'crosssection, and

each includes a base portion 5 arranged against the inner sides of thestraps 1 and an outwardly extending portion 6 apertured at 7 and snuglyreceiving the straps 1; the base portion being fixedly connected to-thecarrying straps 1 by rivets 8 or other appropriate means. By virtue ofthe said construction and relative arrangement of straps and lugs itwill be manifest that each lug of itself is in a measure connected toand held on the carrying straps with the result that the major portionof the-strain incident to the use of the traction increasing means istaken off the rivets 8 or other connecting means.

It will be manifest from the foregoing that each of the sectionsdescribed includes a number of lugs 3, and from this it follows that thetraction increasing means complementary to a traction wheel may beexpeditiously and easily applied to and readily disconnected from thewheel.

The modification shown in Figures 6, 7

and 8 is designed for use on comparatively ,wide wheels, and is made upof three straps 1 similar to the straps 1; and two rows of lugs 3similar'to the lugs 3,- and connected to and relatively arranged on thestraps l in the same manner that the lugs 3 are arranged on andconnected. to the straps 1. It will be observed however, that in themodified construction-the lugs -3" of one row alternate with the lugs 3of the other row; also, that the inner portions of the lugs of the tworows are arranged in lapped though spaced relation, and that the lugs ofthe two rows are so disposed that the lugs of one row extend at an.anglewith the lugs of the other row so that each pair of adjacent lugsin the two rows form substantially obtuse angles. Manifestly thisconstruction affords great traction to a wide wheel.-

Like the embodiment shown in Figures 1 to 5, the embodiment shown inFigures 6 to 8 is susceptible of being readily applied to and removedfroma traction wheel for the reasons hereinbefore indicated.

' I have entered into a detailed description of the construction andrelative arrangement of the parts embraced in the present-and preferredembodiments of my invention in order-to impart a full, clear and exactunderstanding of the said embodiment-s. In do not desire, however, to beunderstood as confining myself to the specific construction and relativearrangement of parts inasmuch as in the future practice of the inventionvarious changes and modifications may be made such as fall within thescope of my invention as defined in my appended claims. .1

Having described my invention,- what I claim and desire to secure byLetters-Patent, 1s:-

1. In traction increasing means for traction wheels, an arcuate carryingstrap in combination with a lu'g carried by and intersecting the strap,the said lug being of angular cross section and having a base portionattached to the strap and also hav ing an upwardly extending portionwith an aperture snugly receiving the strap;

2. In traction increasing means for traction wheels arcuate carryingstraps arranged in parallelism, and spaced. lugs arranged on and at anangle to the straps; the said lugs being of angular cross-section andeach having a base portion arranged at the inner sides of and connectedto the straps and also having an outwardly extending portion withapertures snugly receiving the straps.

3. Traction increasing means for traction wheels comprising spacedarcuate carrying straps in parallelism, and spaced lugs carried by andon the straps and disposed at acute angles to the straps each of thelugs including abase portionarranged at the inner sides of andconnectedto the straps and an outwardly extending portion disposed substantiallyat right angles to -the base portion and: having in itsiinner portion.apertures snugly receiving the straps whereby the lug is held ofitselfon the straps 1 i p 4. Traction increasing means for tractionwheels comprising three arcuate spaced straps in parallelism, and tworows of lugs carried by and on the straps; the, lugsbeing of angularform in cross-sectionand the lugs of each row intersecting theintermediate strap and one of the outer straps, and the lugs of the tworows being disposed at obtuse angles to each other; and j each lughaving an inner portion arranged at the inner side of two straps andconnected thereto and an outer portion with apertures snugly receivingthe straps.

In testimony whereof I affix my signature.

